The utility model discloses an intelligent illuminating lamp cap that underground mine used, the lamp holder includes the step post, the step post includes path end, changeover portion and big footpath end, set up the external screw thread interface outside the path end the top of path end is provided with the contact, the cross section of the changeover portion of step post is the rectangle, andchangeover portion inside is equipped with intelligent wireless transmission module, there is the networking switch on changeover portion outside surface, big footpath holds the inboard to set up internal thread interface. The utility model discloses a lamp holder is convenient for use at coal mining's in -process, possesses data information wireless transmission's function, can manage by remote maintenance, can solve the acquisition and transmission of underground mine creation data information.